Because the pandemic persists all over the world, each month about 130 billion disposable face masks are ending up in landfills, metropolis streets, rivers, seashores and oceans — posing a stark danger to the environmental.
In a examine revealed final week, Australian researchers proposed a possible resolution: recycling the used face masks into roads.
“At the start of the pandemic, I needed I had been a health care provider,” stated Mohammad Saberian, a civil engineer at RMIT College who’s the paper’s lead writer. Then he realized that he, too, had an pressing position to play: determining what to do with pandemic-generated detritus.
The paper, revealed within the journal Science of the Complete Atmosphere, checked out how face masks may very well be mixed with different recycled building supplies to cut back waste from the pandemic whereas lowering reliance on different supplies like plastic, which is commonly used as filler in roads. The researchers discovered that about three million masks may very well be put right into a two-lane highway of greater than half a mile, and that these roads had been more likely to be stronger and extra versatile than some made with nonrecycled supplies.
“This analysis not solely works, however it will probably additionally present actual engineering profit,” Dr. Saberian stated, including that he hoped the following step would contain constructing a prototype of the highway to completely take a look at its performance.
To conduct their experiment, researchers heated the masks to simulate disinfecting them. They then shredded the masks into strips and combined them with recycled concrete. Finally, the researchers had been left with exhausting cylindrical samples, which they examined by making use of weight, warmth and moisture.
The venture shouldn’t be the primary to recycle supplies into roads, neither is it the primary to think about what to do with the lots of discarded private protecting gear, the manufacturing of which has surged since final yr. Firms comparable to TerraCycle, which gather private protecting gear from properties and companies, have additionally grown in reputation in current months.
“We’ve seen spikes in single-used consumption far and wide, and this expertise exhibits a path for utilizing these supplies,” stated Jonathan Krones, an industrial ecologist at Boston Faculty who was not concerned within the examine.
He and different scientists stated, nevertheless, that higher options concerned lowering consumption and the manufacturing of disposable supplies, even in a pandemic. “What I actually wish to see taking place is us divorcing ourselves from this concept that disposability equals sanitation,” Dr. Krones stated.